Sub. code 4271
NEB — GRADE XI
CDC
Model Question
Class 11 Computer Science Model Question CDC
The candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.
Pass Marks : 20
सबै प्रश्नको उत्तर दिनुहोस् । (Attempt All Questions)
This model question paper is for Class 11 Computer Science, CDC (subject code 4271), carrying full marks of 50 with a pass mark of 20, to be completed within 3 Hours. Model answers are available for questions that have one — reveal them with a free account (a few reveals) or a paid plan (unlimited).
Group A
Tick the best alternative.
Which one of the following is an input device?
Speaker
Printer
Monitor
Mouse
Which of the following is NOT a bus type?
Address Bus
Data Bus
Memory Bus
Control Bus
How to represent Boolean F(x,y) = x.y in logic gate?
Which scheduling algorithm allocates the CPU first to the process that requests the CPU first?
First-Come, First-Served scheduling
Priority scheduling
Shortest Job scheduling
Round Robin scheduling
Which operator is used to start/enter the formula in an Excel cell?
$
@
+
Which looping process checks the test condition at the end of the loop?
for
while
do-while
Nested loop
How to insert an image in a web page using HTML tag?
<img=...>
<img source=...>
<img src=...>
<img href=...>
Which image format is best used for photographs and offers a small file size?
PNG
GIF
BMP
JPEG
Which of the following monitors user activity on the internet and transmits that information in the background to someone else?
Malware
Spyware
Adware
Virus
Group B
Give short answer to the following questions.
Explain different types of secondary memory of computer system.
Describe the decimal to binary number conversion process with example.
What are the functions of operating system? Describe.
Define different types of CSS.
Explain the different components of multimedia.
Differentiate between the do and while loop.
Suggest the prevention methods of cybercrime.
Group C
Give long answers to the following questions.
Explain computer architecture with block diagram and functions of its components.
Write a program to input the elements of 4 × 3 matrix and print its elements properly using array.
Draw AND, OR, XOR and XNOR gates with truth table and logic gates.
Paper Overview & Analysis
CDC
Year
Model Question
Type
50
Full Marks
20
Pass Marks
3 Hours
Duration
16
Question Items
Question Type Breakdown
Group Breakdown
Chapter Breakdown
| Computer System | 2 items | 2 marks |
| Number System and Boolean Logic | 2 items | 8 marks |
| Computer Software and Operating System | 2 items | 6 marks |
| Programming Concepts and Logics | 2 items | 6 marks |
| Information Security and Cyber Law | 2 items | 6 marks |
| Application Package | 1 item | 1 mark |
| Web Technology I | 1 item | 1 mark |
| Multimedia | 1 item | 1 mark |
3 question items offered alternative ("OR") chapters and aren't attributed to either, since only one could be attempted.